Abstract
The present study entails a simple chemical method for the preparation of high-quality silver / reduced graphene oxide (Ag/rGO) nanocomposite. Ag/rGO nanocomposite was characterized using UV–Visible spectroscopy, High Resolution Transmission Spectroscopy (HR-TEM), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Brunauer–Emmett–Teller (BET) analysis and X-ray Diffraction spectroscopy (XRD). SEM results showed the Silver (Ag) nanoparticles were deposited on graphene oxide (GO) nanosheets. XRD results confirmed the crystalline structure of Ag/rGO nanocomposite. The photocatalytic activity and stability of Ag/rGO nanocomposite for the degradation of methyl orange (MeO) dye was significantly increased in comparison to GO nanosheets under visible light. The adsorption capacity of Total Dissolved Solids (TDS) by Ag/rGO nanocomposite and GO nanosheets were further studied by utilizing wastewater as sample. The adsorption isothermal and kinetic studies suggest that 0.4 g/L Ag/rGO nanocomposite produce optimum separation capacity. Therefore, considering the excellent photocatalytic activity and adsorptivity nature of Ag/rGO nanocomposite, the present investigation can be effective in energy and environment related application.
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